package org.apache.ddlutils.alteration;

        /*
         * Licensed to the Apache Software Foundation (ASF) under one
         * or more contributor license agreements.  See the NOTICE file
         * distributed with this work for additional information
         * regarding copyright ownership.  The ASF licenses this file
         * to you under the Apache License, Version 2.0 (the
         * "License"); you may not use this file except in compliance
         * with the License.  You may obtain a copy of the License at
         *
         *   http://www.apache.org/licenses/LICENSE-2.0
         *
         * Unless required by applicable law or agreed to in writing,
         * software distributed under the License is distributed on an
         * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
         * KIND, either express or implied.  See the License for the
         * specific language governing permissions and limitations
         * under the License.
         */

import org.apache.ddlutils.model.Column;
import org.apache.ddlutils.model.Database;
import org.apache.ddlutils.model.Table;

/**
 * Base class for changes to columns.
 *
 * @version $Revision: $
 */
public abstract class ColumnChangeImplBase extends TableChangeImplBase
        implements ColumnChange {
    /**
     * The column's name.
     */
    private String _columnName;

    /**
     * Creates a new change object.
     *
     * @param tableName  The name of the table to remove the column from
     * @param columnName The column's name
     */
    public ColumnChangeImplBase(String tableName, String columnName) {
        super(tableName);
        _columnName = columnName;
    }

    /**
     * {@inheritDoc}
     */
    public String getChangedColumn() {
        return _columnName;
    }

    /**
     * {@inheritDoc}
     */
    public Column findChangedColumn(Database model, boolean caseSensitive) {
        Table table = findChangedTable(model, caseSensitive);

        return table == null ? null : table.findColumn(_columnName, caseSensitive);
    }
}
